143653 has 2 divisors, whose sum is σ = 143654. Its totient is φ = 143652.

The previous prime is 143651. The next prime is 143669. The reversal of 143653 is 356341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124609 + 19044 = 353^2 + 138^2 .

It is a cyclic number.

It is not a de Polignac number, because 143653 - 2¹ = 143651 is a prime.

Together with 143651, it forms a pair of twin primes.

143653 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71826 + 71827.

It is an arithmetic number, because the mean of its divisors is an integer number (71827).

2¹⁴³⁶⁵³ is an apocalyptic number.

It is an amenable number.

143653 is a deficient number, since it is larger than the sum of its proper divisors (1).

143653 is an equidigital number, since it uses as much as digits as its factorization.

143653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 22.

The square root of 143653 is about 379.0158308039. The cubic root of 143653 is about 52.3726922958.

Adding to 143653 its reverse (356341), we get a palindrome (499994).

The spelling of 143653 in words is "one hundred forty-three thousand, six hundred fifty-three".